I want to use custom special models on the curve tools in the sculpt room

[tat2charmander]

If I want to use curve tools in a sculpt room to create curve models with special heads and tails, how should I proceed? The model I want to customize is not a model like a spring that is the same from beginning to end, but a model similar to the USB cable provided by the official

[Carlosan]

check this

https://3dcoat.com/documentation/manual/interface-and-navigation/curves-menu/splines-model-creation/

[tat2charmander]

3 minutes ago, Carlosan said:

检查一下

https://3dcoat.com/documentation/manual/interface-and-navigation/curves-menu/splines-model-creation/

Thank you for providing the method, it's really useful.It would be even better if there were normal preview effects during this stage of Save to Splines Panel

[tat2charmander]

3 hours ago, Carlosan said:

check this

https://3dcoat.com/documentation/manual/interface-and-navigation/curves-menu/splines-model-creation/

I have a new problem now. I have created a custom curve model according to the requirements on the above webpage, and also created the path I need in the curve tool. However, I found that the length of the curve when using the custom model is different from that when using the original model. My custom model is always shorter than the length of the original model. And when the path is short, it does not generate a model for the middle section.How can I fix it?

[Carlosan]

Scale is ok ?

[tat2charmander]

9 hours ago, Carlosan said:

Scale is ok ?

I think the scale setting is probably normal, and I will upload screenshots of different scales for you to view. The larger the scale, the shorter the model, and the smaller the scale, the longer the model. However, when the model approaches its normal length, it is too small for me to use.Is this problem caused by the model I created being too long？

Edited April 21 by tat2charmander

[Carlosan]

Please share the model (by PM) to take a look

[Carlosan]

The model is not shorten on my test, try importing this model

tube02.obj

[tat2charmander]

15 hours ago, Carlosan said:

在我的测试中，该模型没有缩短，请尝试导入该模型

tube02.obj 20.64 MB · 0 次下载

Sorry, English is not my native language. I am using some translation tools to communicate with you, and there may be some errors in my expression. My first question is how to create a spline model with three parts, such as an official demo data line. You have perfectly solved this problem for me, which has enabled me to successfully create the custom spline model I want. Then I found that the spline model I customized did not have the same constant position for the top and middle parts as the officially demonstrated data line style spline model. Therefore, I raised a second question in my post, why is my spline model sometimes long and sometimes short? Essentially, my second question is that I cannot solve the problem of the top and middle parts not being able to maintain a constant position. The spline model I want to customize is a spline model that includes top, middle, and bottom, and only repeats the middle part, rather than a spline model that repeats all three together. Just like the data lines shown in the 3DCOAT document, only the middle part has a repeating effect and the positions of the top and bottom remain constant. In my custom spline model, although it is possible to achieve the effect of only repeating the middle part, there is a problem where the top and bottom parts cannot be fixed in a constant position. The positions of these two parts always change according to the length of my spline. If I want the positions of these two parts to remain constant, I would need to reduce the size of my spline model to a very small extent. However, if that happens, I won't be able to use it because it's too small, which is really frustrating for me。

Edited April 22 by tat2charmander

[Carlosan]

Look at the loop part

To create a spline model with three parts LOOP must begin at 0,0,0 Global Space coordinates

But for some reason, I can't get it working with your model because proportions.

Top Middle and Bottom parts must have the same length size.

[tat2charmander]

1 hour ago, Carlosan said:

看看循环部分

要创建具有三部分的样条模型，LOOP 必须从 0,0,0 全局空间坐标开始

但由于某种原因，我无法让它与您的模型一起工作，因为比例。

顶部、中部和底部部分的长度尺寸必须相同。

So it's because there was a problem with my spline model, I should have designed three equally long parts. Thank you very much for your answer. I didn't pay attention to the crucial information of equal length before, so I'm going to try to redesign a spline model that meets the requirements.

[Carlosan]

Try with another single mesh with less resolution, just to test the workflow.

This model have a very high resolution (amount of vertex). It is not very useful if you need to make chains or tubes.

Use this attached models as examples

SplineProfiles.rar

[tat2charmander]

17 hours ago, Carlosan said:

尝试使用另一个分辨率较低的单个网格，只是为了测试工作流程。

这个模型的分辨率（顶点数量）非常高。如果你需要制作链条或管子，它就没什么用了。

使用此附件模型作为示例

样条曲线轮廓.rar 418.03 千字节 · 1 次下载

Thank you very much. I have understood the method of making spline lines and the problem has been resolved.